CN202031547U - Wellhead hydraulic signal generating device - Google Patents
Wellhead hydraulic signal generating device Download PDFInfo
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- CN202031547U CN202031547U CN201020689909XU CN201020689909U CN202031547U CN 202031547 U CN202031547 U CN 202031547U CN 201020689909X U CN201020689909X U CN 201020689909XU CN 201020689909 U CN201020689909 U CN 201020689909U CN 202031547 U CN202031547 U CN 202031547U
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Abstract
The utility model relates to a wellhead hydraulic signal generating device, which is characterized by comprising a hydraulic oil source, driving devices, a relief valve group and a pressure testing system. The hydraulic oil source comprises an oil tank, a temperature sensor and a liquid level sensor are arranged on the lateral wall of the oil tank, an oil pipeline with a hydraulic oil filter is arranged in the oil tank, and the other end of the oil pipeline is connected with the driving devices. Each driving device includes a hydraulic pump driven by a variable-frequency motor. The input end of the hydraulic pump is connected with the oil pipeline, and the output end of the hydraulic pump is connected with a hydraulic signal pipeline on which a one-way valve, a pipeline oil filter and a pipeline globe valve are sequentially arranged. The relief valve group includes an overflow pipeline connected with the hydraulic signal pipeline arranged between the corresponding one-way valve and the pipeline oil filter. The output end of the overflow pipeline is connected in parallel with a two-position two-way solenoid directional valve and a pilot operated relief valve, and the output end of the pilot operated relief valve is connected with an H-type two-position four-way solenoid directional valve connected in parallel with two relief valves.
Description
Technical field
The utility model relates to a kind of signal generation apparatus, particularly can cooperate the underground hydraulic pressure decoder to realize the well head hydraulic pressure signal generating means of the multiple duty of downhole tool for the underground hydraulic pressure control tool provides hydraulic power and control signal about a kind of.
Background technology
The intelligence completion technique can be in the production of a plurality of oil-gas Layer in Ground Control down-hole by obtaining down-hole payzone parameter.Main at present employing ground hydraulic power reaches the down-hole by hydraulic line with ground power, realizes to down-hole executing agency, as the control of sliding sleeve.If only oil-gas Layer is carried out switch control, then can suppress and drive down-hole sliding sleeve action realization oil-gas Layer switch by ground, also can or adopt the wire rope operation carry out switch by the oil pipe operation to target zone.But to control the open degree of down-hole target zone, only depend on simple ground just to suppress relatively difficulty; Adopt conventional production adjustment measure such as oil pipe/steel wire operation just more inconvenient, may need the operation that stops production, influence is produced normally.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides and a kind ofly can realize a plurality of pressure stable signals on ground, and transmit to the down-hole, make the underground hydraulic pressure decoder can base area surface pressure signal and the pipeline sequence realize well head hydraulic pressure signal generating means to the control of down-hole target zone.
For achieving the above object, the utility model is taked following technical scheme: a kind of well head hydraulic pressure signal generating means is characterized in that: it comprises hydraulic oil source, some power set, some overflow valve groups and some pressure testing systems; Described hydraulic oil source comprises fuel tank, and the sidewall of described fuel tank is provided with temperature pick up and the liquid level sensor that connects supervisory control comuter; Be provided with a petroleum pipeline that has a hydraulic oil filter in the described fuel tank, the other end of described petroleum pipeline connects each described power set; Each described power set comprises the hydraulic pump that drives by variable-frequency motor, the input of described hydraulic pump connects described petroleum pipeline, described hydraulic pressure delivery side of pump connects the hydraulic pressure signal pipeline, is disposed with one way valve, pipeline oil filter and pipeline stop valve on the described hydraulic pressure signal pipeline; Each overflow valve group comprises an overflow line, and described overflow line is connected in the corresponding described power set, on the described hydraulic pressure signal pipeline between described one way valve and the described pipeline oil filter; The output of described overflow line be connected in parallel bi-bit bi-pass solenoid operated directional valve and pilot operated compound relief valve, the output of described pilot operated compound relief valve connects H type two-position four-way solenoid operated directional valve, the output of described two-position four-way solenoid operated directional valve two overflow valves that are connected in parallel; Each described pressure testing system comprises loine pressure table and the line-pressure sensor that is arranged in parallel in described hydraulic pressure signal pipeline and described overflow line junction, and the output of described line-pressure sensor connects supervisory control comuter.
Described power set, overflow valve group and pressure testing system are three.
The utility model is owing to take above technical scheme, and it has the following advantages: 1, the utility model can provide cleaning hydraulic oil owing to be provided with hydraulic oil source for the utility model device by hydraulic oil source.2, the utility model can provide power owing to be provided with power set for the utility model device by power set.3, the utility model is owing to be provided with the overflow valve group, and an overflow valve in the overflow valve group is set at threshold pressure, and when being lower than threshold pressure, downhole system is regarded as this pressure invalid signals or is spurious signal, and is inoperative to downhole system; When being greater than or equal to threshold pressure, downhole system is regarded as useful signal with this pressure, useful signal comprises the threshold pressure signal, and the high-voltage signal that is higher than the threshold pressure signal, therefore, the utility model can provide the pressure signal of three standards by the overflow valve group to the down-hole: 0 pressure signal, threshold pressure signal and high-voltage signal.4, therefore the utility model, can realize the adjusting of hydraulic pump discharge by regulating the rotating speed of variable-frequency motor because hydraulic pump is driven by variable-frequency motor.5, the utility model can make hydraulic oil can only flow out hydraulic pump owing on the hydraulic pressure signal pipeline one way valve is set by one way valve, therefore, can protect hydraulic pump to avoid flow-reversing impingement.6, therefore the utility model, filters hydraulic oil by the pipeline oil filter because the hydraulic pressure signal pipeline is provided with pipeline oil filter and pipeline stop valve, can provide cleaning hydraulic oil to the shaft bottom; Can turn-off oil circuit where necessary by stop valve.The utility model structure setting operation is convenient, can provide a plurality of stable hydraulic power and control signal for the underground hydraulic pressure control tool, therefore, can be widely used in the control of downhole tool state.
Description of drawings
Fig. 1 is the utility model device schematic diagram
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model comprises hydraulic oil source 1, power set 2, overflow valve group 3 and pressure testing system 4.
In the foregoing description, according to actual needs, the output of petroleum pipeline 15 some power set 2 that can be connected in parallel all have been arranged in parallel overflow valve group 3 and pressure testing system 4 on each power set 2.Power set 2 shown in the schematic diagram of present embodiment, overflow valve group 3 and pressure testing system 4 are respectively three, only as example, but are not limited thereto.
As shown in Figure 1, be example with one of them power set 2, overflow valve group 3 and pressure testing system 4, the method for operating of the utility model device may further comprise the steps.
1) open variable-frequency motor 21, variable-frequency motor 21 drives hydraulic pump 22 work, and the hydraulic oil in the fuel tank 11 filters the back through the hydraulic oil filter on the petroleum pipeline 15 14 and flows into hydraulic pump 22, flows into hydraulic pressure signal pipeline 23 through the hydraulic oil behind the hydraulic pump 22.In this process, can realize the adjusting of hydraulic pump 22 discharge capacities by regulating the rotating speed of variable-frequency motor 21; By the one way valve on the hydraulic pressure signal pipeline 23 24, make hydraulic oil can only flow out hydraulic pump 22, avoid flow-reversing impingement with protection hydraulic pump 22.
2) force value that is provided with by overflow valve group 3, after hydraulic pump 22 is opened, will produce the hydraulic pressure signal that satisfies selected pressure, by hydraulic pressure signal pipeline 23, flow into the shaft bottom through pipeline oil filter 25 and pipeline stop valve 26 successively, hydraulic pressure signal is provided, and hydraulic pressure signal comprises: 0 pressure signal, threshold pressure signal and high-voltage signal.
The method to set up of overflow valve group 3 force value is: the pressure of setting overflow valve 35 is threshold pressure, and the pressure of setting overflow valve 36 is the high-voltage value greater than threshold pressure, and the pressure of setting pilot operated compound relief valve 33 is the force value greater than overflow valve 36 high-voltage values.
1. the startup of 0 pressure:
Disconnect bi-bit bi-pass solenoid operated directional valve 32, connect the pilot valve of pilot operated compound relief valve 33, hydraulic oil flows to two-position four-way solenoid operated directional valve 34 through the pilot valve of pilot operated compound relief valve 33, owing to adopt the two-position four-way solenoid operated directional valve 34 of H type function, the pilot valve control hydraulic oil of pilot operated compound relief valve 33 is through the meta H of two-position four-way solenoid operated directional valve 34 type runner, the hydraulic oil flow oil sump tank, after the pilot valve pressure stability of pilot operated compound relief valve 33, can open the main valve of pilot operated compound relief valve 33 automatically, hydraulic oil flows back to fuel tank by the main valve of pilot operated compound relief valve 33, and system pressure is 0.
2. the startup of threshold pressure:
Disconnect bi-bit bi-pass solenoid operated directional valve 32, connect the pilot valve of pilot operated compound relief valve 33, two-position four-way solenoid operated directional valve 34 left sides are switched on, the pilot valve of pilot operated compound relief valve 33 control hydraulic oil through two-position four-way solenoid operated directional valve 34 left bit streams to overflow valve 35, when line pressure equals the threshold pressure of overflow valve 35 settings, overflow valve 35 is opened, the hydraulic oil flow oil sump tank.After the pilot valve pressure stability of pilot operated compound relief valve 33, can open the main valve of pilot operated compound relief valve 33 automatically, hydraulic oil flows back to fuel tank by the main valve of pilot operated compound relief valve 33, and system pressure remains the threshold pressure that overflow valve 35 is set.System pressure can be observed by the loine pressure table 41 in the pressure testing system 4, also can be sent on the supervisory control comuter by the line-pressure sensor in the pressure testing system 4 42.
3. the startup of high pressure:
Disconnect bi-bit bi-pass solenoid operated directional valve 32, connect the pilot valve of pilot operated compound relief valve 33, two-position four-way solenoid operated directional valve 34 the right are switched on, the pilot valve of pilot operated compound relief valve 33 control hydraulic oil through the right bit stream of two-position four-way solenoid operated directional valve 34 to overflow valve 36, when line pressure equals the high-pressure of overflow valve 36 settings, overflow valve 36 is opened, the hydraulic oil flow oil sump tank.After the pilot valve pressure stability of pilot operated compound relief valve 33, can open the main valve of pilot operated compound relief valve 33 automatically, hydraulic oil flows back to fuel tank by the main valve of pilot operated compound relief valve 33, and system pressure remains the high pressure that overflow valve 36 is set.System pressure can be observed by the loine pressure table 41 in the pressure testing system 4, also can be sent on the supervisory control comuter by the line-pressure sensor in the pressure testing system 4 42.
In the foregoing description, when emergency decompression, can connect two position two-way valve 32, disconnect pilot operated compound relief valve 33, hydraulic oil flow directly flows back to fuel tank through two position two-way valve 32 left ends, and system pressure is 0, realizes pressure release.
In the foregoing description, when system cut-off, bi-bit bi-pass solenoid operated directional valve 32 disconnects, and two-position four-way solenoid operated directional valve 34 is got back to meta, and hydraulic oil is controlled hydraulic oil through the meta H of two-position four-way solenoid operated directional valve 34 type runner through the pilot valve of pilot operated compound relief valve 33, the hydraulic oil flow oil sump tank, after the pilot valve pressure stability of pilot operated compound relief valve 33, can open the main valve of pilot operated compound relief valve 33 automatically, hydraulic oil flows back to fuel tank by the main valve of pilot operated compound relief valve 33, system pressure is 0, system decompression.
The output of the petroleum pipeline 15 in the utility model device some power set 2 that can be connected in parallel, overflow valve group 3 and pressure testing system 4 all have been arranged in parallel on each power set 2, and it is the same with the mechanism of action of each pipeline that pressure testing system 4 is formed by power set 2, overflow valve group 3, therefore, the wherein pressure of an overflow valve in each overflow valve group 3 can be set at unified threshold pressure, the pressure of another overflow valve is set at unified high pressure, and the pressure of each pilot operated compound relief valve itself is set at the high-pressure that is higher than overflow valve.On any pipeline, can realize 0 pressure signal of threshold pressure, high-voltage signal and pressure release state thus,, realize that corresponding mechanism controls in conjunction with the underground hydraulic pressure decoder.
The utility model device provides the down-hole to carry out original paper on ground power, the hydraulic pressure signal that provides down well placement to control simultaneously.Signal is made up of invalid signals and useful signal.The utility model is provided with a threshold pressure, and when being lower than threshold pressure, downhole system is regarded as this pressure invalid signals or is spurious signal, and is inoperative to downhole system; When being higher than when equaling threshold pressure, downhole system is regarded as useful signal with this pressure, and useful signal comprises the threshold pressure signal, and the high-voltage signal that is higher than the threshold pressure signal.
The various embodiments described above only are used to illustrate the utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (2)
1. well head hydraulic pressure signal generating means, it is characterized in that: it comprises hydraulic oil source, some power set, some overflow valve groups and some pressure testing systems;
Described hydraulic oil source comprises fuel tank, and the sidewall of described fuel tank is provided with temperature pick up and the liquid level sensor that connects supervisory control comuter; Be provided with a petroleum pipeline that has a hydraulic oil filter in the described fuel tank, the other end of described petroleum pipeline connects each described power set;
Each described power set comprises the hydraulic pump that drives by variable-frequency motor, the input of described hydraulic pump connects described petroleum pipeline, described hydraulic pressure delivery side of pump connects the hydraulic pressure signal pipeline, is disposed with one way valve, pipeline oil filter and pipeline stop valve on the described hydraulic pressure signal pipeline;
Each overflow valve group comprises an overflow line, and described overflow line is connected in the corresponding described power set, on the described hydraulic pressure signal pipeline between described one way valve and the described pipeline oil filter; The output of described overflow line be connected in parallel bi-bit bi-pass solenoid operated directional valve and pilot operated compound relief valve, the output of described pilot operated compound relief valve connects H type two-position four-way solenoid operated directional valve, the output of described two-position four-way solenoid operated directional valve two overflow valves that are connected in parallel;
Each described pressure testing system comprises loine pressure table and the line-pressure sensor that is arranged in parallel in described hydraulic pressure signal pipeline and described overflow line junction, and the output of described line-pressure sensor connects supervisory control comuter.
2. a kind of well head hydraulic pressure signal generating means as claimed in claim 1, it is characterized in that: described power set, overflow valve group and pressure testing system are three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020689909XU CN202031547U (en) | 2010-12-30 | 2010-12-30 | Wellhead hydraulic signal generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020689909XU CN202031547U (en) | 2010-12-30 | 2010-12-30 | Wellhead hydraulic signal generating device |
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| Publication Number | Publication Date |
|---|---|
| CN202031547U true CN202031547U (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020689909XU Expired - Lifetime CN202031547U (en) | 2010-12-30 | 2010-12-30 | Wellhead hydraulic signal generating device |
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| CN (1) | CN202031547U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094627A (en) * | 2010-12-30 | 2011-06-15 | 中国海洋石油总公司 | Well-head hydraulic signal generating device and operating method thereof |
| CN113915528A (en) * | 2021-10-28 | 2022-01-11 | 广州文冲船厂有限责任公司 | Pressure distribution system |
| CN113958305A (en) * | 2021-09-30 | 2022-01-21 | 深圳市美可达科技有限公司 | Intelligent substation operation monitoring equipment for oil field and use method thereof |
-
2010
- 2010-12-30 CN CN201020689909XU patent/CN202031547U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094627A (en) * | 2010-12-30 | 2011-06-15 | 中国海洋石油总公司 | Well-head hydraulic signal generating device and operating method thereof |
| CN102094627B (en) * | 2010-12-30 | 2013-08-21 | 中国海洋石油总公司 | Well-head hydraulic signal generating device and operating method thereof |
| CN113958305A (en) * | 2021-09-30 | 2022-01-21 | 深圳市美可达科技有限公司 | Intelligent substation operation monitoring equipment for oil field and use method thereof |
| CN113958305B (en) * | 2021-09-30 | 2022-06-28 | 深圳市美可达科技有限公司 | Oil field intelligent small station operation monitoring equipment and use method thereof |
| CN113915528A (en) * | 2021-10-28 | 2022-01-11 | 广州文冲船厂有限责任公司 | Pressure distribution system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111109 Effective date of abandoning: 20130821 |
|
| RGAV | Abandon patent right to avoid regrant |